ICD-10 Code for Noncompliance

The default ICD-10-CM 2027 code for noncompliance is Z91.199 – Patient's noncompliance with other medical treatment and regimen due to unspecified reason. More specific codes depend on the details documented, as listed in the official index (25 codes, 25 billable).

Main code: Z91.199 – Patient's noncompliance with other medical treatment and regimen due to unspecified reason
Billable: Yes

Index entries for Noncompliance

with
- dietary regimen – Z91.119
  - due to
    - financial hardship – Z91.110
    - specified reason NEC – Z91.118
- dialysis – Z91.158
  - due to financial hardship – Z91.151
- medical treatment, specified NEC – Z91.199
  - due to
    - financial hardship – Z91.190
    - specified reason NEC – Z91.198
- medication regimen NEC – Z91.148
  - due to financial hardship – Z91.141
  - underdosing – Z91.148 – see also Table of Drugs and Chemicals, categories T36-T50, with final character 6
    - intentional NEC – Z91.128
      - by caregiver
        due to
        financial hardship – Z91.A20
        specified reason NEC – Z91.A28
      - due to financial hardship of patient – Z91.120
    - unintentional NEC – Z91.138
      - by caregiver – Z91.A3
      - due to patient's age related debility – Z91.130
- renal dialysis – Z91.158
  - due to financial hardship – Z91.151
caregiver
- with patient's
  - dietary regimen
    - due to
      - financial hardship – Z91.A10
      - specified reason NEC – Z91.A18
  - medical treatment and regimen
    - due to financial hardship – Z91.A91
    - specified reason NEC – Z91.A98
  - medication regimen
    - due to financial hardship – Z91.A41
    - specified reason NEC – Z91.A48
  - renal dialysis
    - due to financial hardship – Z91.A51
    - specified reason NEC – Z91.A58

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.